| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] is usually a | 105 |
|
| 2 | [noun] [is] usually a | 95 |
|
| 3 | [noun sg] [is] usually a | 95 |
|
| 4 | [noun] [is] usually an | 11 |
|
| 5 | [noun pl] [is] usually a | 7 |
|
